azerbaijan baku airport but mirror fly directly tbilisi georgia

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travel problem description:9.2 from 9 pm to baku, want to sit on the second day morning 8:00 plane fly directly tbilisi.1.it is not out of the airport, can't get a visa to azerbaijan?(to save a sum of money) 2.the airport there is a hostel can live, how the airport environment(sleep alternate airport)

answer:(1)

1, no problem, azerbaijan airlines is so tbilisi;2, is the best way to bring a sleeping bag.